WO2009104467A1 - 電界通信用電子機器 - Google Patents

電界通信用電子機器 Download PDF

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Publication number
WO2009104467A1
WO2009104467A1 PCT/JP2009/051696 JP2009051696W WO2009104467A1 WO 2009104467 A1 WO2009104467 A1 WO 2009104467A1 JP 2009051696 W JP2009051696 W JP 2009051696W WO 2009104467 A1 WO2009104467 A1 WO 2009104467A1
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WO
WIPO (PCT)
Prior art keywords
transmission medium
electronic device
electric field
case
field communication
Prior art date
Application number
PCT/JP2009/051696
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
広行 蛇口
重俊 松田
Original Assignee
アルプス電気株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by アルプス電気株式会社 filed Critical アルプス電気株式会社
Priority to CN2009801048378A priority Critical patent/CN101946431B/zh
Priority to JP2009554265A priority patent/JP4717143B2/ja
Publication of WO2009104467A1 publication Critical patent/WO2009104467A1/ja
Priority to US12/855,632 priority patent/US8208852B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B13/00—Transmission systems characterised by the medium used for transmission, not provided for in groups H04B3/00 - H04B11/00
    • H04B13/005—Transmission systems in which the medium consists of the human body

Definitions

  • the present invention relates to an electronic device used in a system that transmits and receives an electric field signal via a transmission medium such as a human body or space.
  • Patent Document 1 For a communication system that transmits and receives via a transmission medium (mainly a human body), a method of communicating using an electric field is disclosed in Patent Document 1 and the like.
  • an electrode pair that is, a human body side (internal) electrode that is closely capacitively coupled to the human body, and a coupling to room ground are oriented so as to be larger than the human body side (internal) electrode.
  • Each pair of transmitter and receiver is provided with a pair of outer (external) electrodes.
  • Patent Document 2 focuses on the problem that communication quality deteriorates due to unwanted electromagnetic waves generated from an electronic circuit or display of a portable terminal for electric field communication entering the human body, and circuit elements of the portable terminal for electric field communication. Communication quality that suppresses unnecessary electromagnetic waves generated from circuit elements from being mixed into the living body by newly providing transmission / reception electrodes dedicated to human body communication at positions away from displays (operation keys, electric field communication transceivers, computers, etc.) It is disclosed to improve the above. Japanese National Patent Publication No. 11-509380 JP 2005-303922 A
  • the present invention has been made in view of such points, and communication is possible even when the surface of the electronic device facing the transmission medium is other than the surface on the signal electrode side, and the user is unaware of whether the surface of the electronic device is front or back.
  • An object of the present invention is to provide an easy-to-use electronic device for electric field communication that can perform communication.
  • the electronic device for electric field communication is an electronic device used as a transmitter and / or a receiver in a system that performs electric field communication via a transmission medium, and the electronic device includes a first surface and a second surface that face each other.
  • a signal electrode that transmits and / or receives an electric field signal, and a first device component that is connected or capacitively coupled to the signal electrode is disposed on the first surface side.
  • a second device component including a battery is connected or capacitively coupled to a reference potential of the electronic device, and the signal electrode and the first device when the first surface faces the transmission medium.
  • the total capacitance (Cgt) is almost equal. And features.
  • This configuration is not limited to the first surface on the signal electrode side, and communication at the same level is possible even when the second surface faces the transmission medium. Therefore, it is not necessary for the user to distinguish between the first surface and the second surface of the electronic device, and it becomes easy to handle.
  • the electronic apparatus for electric field communication it is preferable to have a reference electrode having the reference potential. According to this configuration, since a capacitance generated between the reference electrode connected to the reference potential and the transmission medium is added, the capacitance with the transmission medium formed of a battery or a circuit board is insufficient. Even in this case, a sufficient capacitance for electric field communication can be obtained. In addition, by providing the reference electrode, it is possible to easily balance the capacitance between the first surface and the second surface.
  • the area of the first surface and the area of the second surface are substantially the same as each other and larger than the area of the other surface of the electronic device. According to this configuration, since it is natural that the surface having the large area is normally opposed to the transmission medium, the user is not particularly aware of the first surface and the second surface to be opposed to the transmission medium. It becomes easy to handle.
  • the area of the first surface and the area of the second surface are substantially the same as each other and not the maximum compared to the area of the other surface of the electronic device. .
  • This configuration is suitable for applications in which the user intends the first surface or the second surface to face the transmission medium. Even in this case, it is not necessary to distinguish between the first surface and the second surface, and an electronic device that is easy to handle can be realized.
  • the electronic device for electric field communication is an electronic device used as a transmitter and / or a receiver in a system that performs electric field communication via a transmission medium, and the electronic device includes a first surface and a second surface that face each other.
  • a signal electrode that transmits and / or receives an electric field signal, and a first device component that is connected or capacitively coupled to the signal electrode is disposed on the first surface side.
  • a second device component including a battery is connected or capacitively coupled to a reference potential of the electronic device, and the signal electrode and the first device when the first surface faces the transmission medium.
  • the total capacitance (Cgt) is almost equal. Therefore, communication is possible even if the surface of the electronic device facing the transmission medium is other than the surface on the signal electrode side, and the user can communicate without being aware of whether the electronic device is front or back.
  • FIG. 1 It is a schematic block diagram which shows the electric field communication system using the electronic device which concerns on embodiment of this invention. It is a schematic sectional drawing which shows the electronic device which concerns on embodiment of this invention.
  • (A), (b) is a figure for demonstrating the electrostatic capacitance in the use condition of the electronic device which concerns on embodiment of this invention. It is a figure which shows an example of the electronic device which concerns on embodiment of this invention. It is a figure for demonstrating the usage condition of the electronic device shown in FIG. It is a figure for demonstrating the other usage condition of the electronic device shown in FIG. It is a figure which shows the other example of the electronic device which concerns on embodiment of this invention. It is a figure for demonstrating the usage condition of the electronic device shown in FIG.
  • the present inventors pay attention to such points, and when the first surface faces the transmission medium by balancing the capacitance of the first surface side and the second surface side including the battery and the circuit board.
  • an electronic device used as a transmitter and / or receiver in an electric field communication system via a transmission medium includes a first surface side and a second surface that face each other including a battery and a circuit board.
  • FIG. 1 is a diagram for explaining an electric field communication system using an electronic apparatus according to an embodiment of the present invention.
  • the human body side (internal) electrode that is closely capacitively coupled to the human body 2 and the coupling to the ground 4 are the human body side (internal).
  • the transmitter 1 and the receiver 3 each have a pair of outer (external) electrodes oriented to be larger than the electrodes.
  • a forward path (path A in FIG. 1) through which a signal is transmitted through capacitive coupling between a transmitter, a human body, and a receiver, and a receiver, a dielectric such as air, or a ground, etc.
  • a return path (path B in FIG. 1) is required through which the signal flows through capacitive coupling with the conductor-receiver.
  • an information signal is modulated with a carrier wave having a frequency (several hundred kHz to several tens of MHz) at which the human body exhibits conductivity, and a modulated signal is obtained.
  • This modulated signal is amplified and converted into a voltage change, thereby becoming an electromagnetic field signal corresponding to the modulated signal.
  • This electric field signal is applied to the human body that is the transmission medium 2.
  • the modulation / demodulation method in the transmitter 1 and the receiver 3 is not particularly limited, and baseband transmission without modulation / demodulation may be used.
  • the electric field signal applied to the human body is received by the signal electrode of the receiver 3.
  • the electric field signal applied to the signal electrode is amplified, demodulated using the carrier wave used in the transmitter 1, and output as an information signal.
  • FIG. 2 is a schematic sectional view showing an electronic device used as the transmitter 1 or the receiver 3 in the system shown in FIG.
  • the electronic device shown in FIG. 2 includes a housing 11 having a first surface and a second surface facing each other.
  • a circuit board 12 is disposed inside the housing 11.
  • a signal electrode (transmission electrode, reception electrode, or transmission / reception electrode) 13 for transmitting and / or receiving an electric field signal is disposed on the first surface side of the housing 11.
  • the signal electrode 13 is electrically connected to the conductive portion 16 of the circuit board 12 which is a device component.
  • the signal electrode 13 and the conductive portion 16 of the circuit board 12 may be electrically connected by means such as wired or capacitive coupling.
  • a battery 14 that is a device component and a reference electrode 15 having a reference potential of an electric field are disposed on the second surface side of the housing 11.
  • the electrically conductive part such as an electrode
  • the device components are not necessarily arranged on the exposed surface of the housing, and each device component is relatively first with respect to the center in the housing 11 or the first surface side. The case where it is arranged close to the two sides is also included.
  • the reference electrode 15 is provided on the second surface side.
  • the reference electrode 15 is provided when the capacitance with the transmission medium formed of a battery, a circuit board, or the like is insufficient, and the capacitance generated between the reference electrode and the transmission medium is added. It is possible to obtain a sufficient capacitance for electric field communication. Further, by providing this reference electrode, it is possible to easily balance the capacitance between the first surface and the second surface. For example, if the battery 14 is sufficiently large and the capacitance balance between the first surface and the second surface is balanced, the reference electrode 15 is not necessarily provided.
  • FIG. 3A is a diagram illustrating a state in which the first surface of the electronic device faces the transmission medium
  • FIG. 3B is a diagram illustrating a state in which the second surface of the electronic device is facing the transmission medium. is there.
  • the total sum (Cgt) of the capacitance generated between the device component and the transmission medium 2 when the second surface faces the transmission medium 2 is substantially equal.
  • the capacitance between the signal electrode 13 and the transmission medium 2 is Cs1
  • the capacitance between the battery 14 having the reference potential and the transmission medium 2 is Cg1, and a part of the circuit board 12 having the reference potential is used.
  • the transmission medium 2 is Cg2
  • Cst and Cgt substantially equal, it is possible to enable communication at the same level regardless of whether the surface facing the transmission medium 2 is the first surface or the second surface. Therefore, it is not necessary for the user to distinguish between the first surface and the second surface of the electronic device, and it becomes easy to handle.
  • the device components may be selected so as to exclude the reference electrode 15.
  • the difference between Cst and Cgt is preferably within 10%.
  • the sub-display, camera module, etc. appearing in the folded state are evaluated to contribute to the signal electrode 13 or the reference electrode 15, and the balance between Cst and Cgt is adjusted. I need to take it.
  • FIG. 4 is a diagram showing a general electronic device having a hexahedral shape.
  • the surface with the largest area is the top surface 21 and the bottom surface 22, and these are the first surface and the second surface, respectively.
  • the top surface 21 may be the second surface and the bottom surface 22 may be the first surface.
  • a usage mode in which the hexahedron is put in a pocket or the like is conceivable.
  • the electronic device is usually placed in the pocket 31 so that the thickness of the electronic device is thin, and the upper surface 21 or the bottom surface 22 faces the human body.
  • the first surface or the second surface of the electronic device faces the human body without much awareness of the user.
  • a wristband 41 such as a wristwatch shown in FIG. 6, it is worn so that the top surface 21 or the bottom surface 22 faces the human body.
  • the area of the first surface and the area of the second surface are substantially the same and larger than the area of the other surface of the electronic device. It is preferable.
  • the surface having the large area is normally opposed to the transmission medium. Therefore, the first surface and the second surface are opposed to the transmission medium without being particularly conscious of the user. Therefore, it becomes easier to handle.
  • FIG. 7 is a diagram illustrating another example of an electronic device having a hexahedral shape.
  • the surfaces other than the surface having the largest area, here, the side surfaces 23 and 24 are defined as a first surface and a second surface, respectively.
  • the first surface and the second surface are surfaces having a smaller area than the top surface and the bottom surface and are generally less likely to face the transmission medium.
  • communication can be performed by an operation with the intention of standing an electronic device. That is, it is possible to prevent communication without being conscious of the user.
  • communication is not normally established by placing it sideways, but communication is possible only when the user intentionally stands up.
  • FIG. 8 there are a plurality of electronic devices on a plate-shaped transmission medium (conductor or dielectric) 2, and the standing devices can communicate with each other, but are placed sideways. Things cannot communicate.
  • this is applied to a game like Sugoroku, communication is performed while the piece is set up, and the history of the route is stored in the memory, or when stopping at a specific place, points are added or withdrawn by communication It becomes possible. Even in this case, even if the surfaces facing the transmission medium 2 are the side surfaces 23 and 24, the communication performance is the same, and there is no need to distinguish between them and it is easy to use.
  • the area of the first surface and the area of the second surface are substantially the same as each other, and the maximum is larger than the area of the other surface of the electronic device. Preferably not.
  • electric field communication can be performed in the application of FIG. 8 in which the user intends the first surface or the second surface to face the transmission medium. Even in this case, it is not necessary to distinguish between the first surface and the second surface, and an electronic device that is easy to handle can be realized.
  • the present invention is not limited to the embodiment described above, and can be implemented with various modifications.
  • the circuit configuration, the number of parts, numerical values, and the like in the above embodiment are merely examples, and the present invention is not limited thereto and can be implemented with appropriate modifications. Other modifications can be made without departing from the scope of the present invention.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Near-Field Transmission Systems (AREA)
  • Telephone Set Structure (AREA)
PCT/JP2009/051696 2008-02-22 2009-02-02 電界通信用電子機器 WO2009104467A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2009801048378A CN101946431B (zh) 2008-02-22 2009-02-02 电场通信用电子设备
JP2009554265A JP4717143B2 (ja) 2008-02-22 2009-02-02 電界通信用電子機器
US12/855,632 US8208852B2 (en) 2008-02-22 2010-08-12 Electronic apparatus for electric field communication

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008-040877 2008-02-22
JP2008040877 2008-02-22

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/855,632 Continuation US8208852B2 (en) 2008-02-22 2010-08-12 Electronic apparatus for electric field communication

Publications (1)

Publication Number Publication Date
WO2009104467A1 true WO2009104467A1 (ja) 2009-08-27

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PCT/JP2009/051696 WO2009104467A1 (ja) 2008-02-22 2009-02-02 電界通信用電子機器

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US (1) US8208852B2 (zh)
JP (1) JP4717143B2 (zh)
CN (1) CN101946431B (zh)
WO (1) WO2009104467A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102480326A (zh) * 2010-11-19 2012-05-30 株式会社东芝 通信装置、通信系统
JP2015192211A (ja) * 2014-03-27 2015-11-02 大日本印刷株式会社 記憶媒体ホルダ
JP2019054366A (ja) * 2017-09-14 2019-04-04 大日本印刷株式会社 通信端末

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2413521A4 (en) * 2009-03-26 2015-12-09 Alps Electric Co Ltd COMMUNICATION SYSTEM
JP5746604B2 (ja) 2011-12-07 2015-07-08 株式会社東芝 通信装置
JP5814854B2 (ja) * 2012-04-18 2015-11-17 株式会社東芝 通信装置
KR102052914B1 (ko) * 2013-07-12 2019-12-09 삼성전자주식회사 전자 장치의 제어 방법 및 장치
JP2016025595A (ja) * 2014-07-23 2016-02-08 株式会社東芝 通信装置
AU2020298980A1 (en) * 2019-07-01 2022-02-17 Hosei University Electric field communication system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003188833A (ja) * 2001-12-21 2003-07-04 Tokai Rika Co Ltd 携帯用データ通信装置及び双方向通信システム
WO2006132058A1 (ja) * 2005-05-17 2006-12-14 Sony Corporation 通信装置および方法、並びにプログラム

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6600323B2 (en) * 2001-08-24 2003-07-29 Trek, Inc. Sensor for non-contacting electrostatic detector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003188833A (ja) * 2001-12-21 2003-07-04 Tokai Rika Co Ltd 携帯用データ通信装置及び双方向通信システム
WO2006132058A1 (ja) * 2005-05-17 2006-12-14 Sony Corporation 通信装置および方法、並びにプログラム

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102480326A (zh) * 2010-11-19 2012-05-30 株式会社东芝 通信装置、通信系统
US9014629B2 (en) 2010-11-19 2015-04-21 Kabushiki Kaisha Toshiba Communication apparatus and communication system
JP2015192211A (ja) * 2014-03-27 2015-11-02 大日本印刷株式会社 記憶媒体ホルダ
JP2019054366A (ja) * 2017-09-14 2019-04-04 大日本印刷株式会社 通信端末
JP7013747B2 (ja) 2017-09-14 2022-02-01 大日本印刷株式会社 通信端末

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Publication number Publication date
US20100304671A1 (en) 2010-12-02
CN101946431B (zh) 2013-05-15
US8208852B2 (en) 2012-06-26
JP4717143B2 (ja) 2011-07-06
CN101946431A (zh) 2011-01-12
JPWO2009104467A1 (ja) 2011-06-23

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